Sheet-uniting device



A. W. McCURDY. SHEET UNITING DEVICE.

APPLICATION FILED mu: 1:. I911. mmuzo use. 9. ms.

1,350,371. Patentedug. 24,1920.

EETS A.. w., mcunnv. SHEET UNITING DEVICE.

PLICATIOII FILED JUNE 2. I911. RENEWED DEC 9. m9. Patented Aug. 24,1920.

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To all whom it may concern UNITED STATES PATENT OFFICE...

ARTHUR W. MOCURDY, OF VICTORIA, BRITISH COLUM BIA, CANADA.

SHEET-UNITING DEVICE.

Specification of Letters Patent. I Patented Aug, 24-, 1920.

Application filed June 12, 1917, Serial No. 174,303. Renewed December 9,1919. Serial No. 343,644.

I Be it known that I, ARTHUR W. MoCUnDY, a subject of the King ofEngland, residing at Victoria, British Columbia, Dominion of Canada haveinvented certain new and useful improvements in Sheet-Uniting Devices,of which the following is a specification. 1

This invention pertains to a device for at- I taching two or more sheetsof paper or similar thin, 7 flat materials one .to another by means of aheadless pin, and is designed primarily for attaching the sensitizedcellulose film of daylight-loading films to the light-excluding strip orwrapper. It is more particularly designed for use with a film of specialconstruction set forth in a pending application Serial No. 164,693,filed in my name April 26, 1917. The purpose of the invention is todispense with the gummed stickers now commonly employed, and to producea fastening which shall be at once inexpensive, secure, and free fromundesirable projection or protuberance which might interfere with thehandling of the film in the camera or elsewhere.

A convenient and simple form of the device is illustrated in theaccompanying drawings, in which:

Figure 1 is a perspective View of the structure;

Fig. 2 is a vertical longitudinal section through the magazine in whichthe fastening-pins are stored, and through the channel in which thepin-driving plunger or follower and pins move in the operation ofuniting two sheets;

Fig. 3 is a similar sectional view showing I the plunger or followeradvanced and the pin passed through the two sheets;

Fig. 4 is a view illustrating 'a modification of the table or bed of thedevice;

Fig. 5 is a broken perspective view showcates a flat bar advisably ofmetal, provided with a threaded stem 2 and a thumb-nut 3 by which thebar may be clamped or secured to a table or support in such manner as tobe held against displacement, yetleft free to be swung to one side whenrequired. At a suitable point between its ends the bar 1 is providedwith ears 4 between which is received one end of a clamping bar or lever5, which is hinged or jointed to the ears 4 by a hinge-pin 6 passingthrough erforations in said ears and in the bar 5. it about itsmidlength bar 5 has on its lower face aswell or boss 7, preferably ofarc shape, and the bar 1 is .provided with a seat or recess 8 at asuitable point in its length to receive the swell 0r boss 7 when theclamping bar 5 is lowered from the vertical position in which it isshown in Fig. 1 to the horizontal position shown in Figs. 2 and 3.

Secured upon the bar 1 forward of the ears 4 is a table 9 havingupstanding flanges lOspaced apart a distance corresponding to the widthof the film and wrapper or envelop to be handled. These flanges 10 mayif desired be made adjustable in the manner illustrated in Fig. 4; thatis to say, each in the table, as indicated. The tapped holes arepreferable for the reason that the precise adjustment required will bedetermined by the properly positioned holes.

Bar 1 is provided with a longitudinal groove or channel 11, whichextends from a point just forward of the seat or depression 8 of bar 1to a point near the-opposite or rear end of said bar. The cross sectionof this groove 11 is just 'suflicient to permit the free movement withinit of the headless pins used as fasteners. These pins are stored in amagazine 12 just to the rear of the ears 4, and are of dimensions topermit a single stack of pins to be stored within it one above another,the lowermost pin lying in the groove 11, and the descent-of the pinsbeing insured by a gravitating follower 13. Also movable within thegroove or channel 11 is a slide or plunger 14, the forward end of which,when the plunger is retracted, passes just to the rear of the magazine12. The

plunger is furnished at its rear end with a knob 15, the shank or stemof which isis a matter of convenience, as otherwise grooved to receivethe inner edges of a cover-plate 16 having a slot 17, and secured to thebar 1 by screws or other fastening. This construction precludesdisplacement of the slide or plunger 1-1, since its forward end isalways beneath the cover-plate l6, and its rear end is held by theengagement of its knob or button 15 with the cover plate 16. Theclamping bar 5 is provided with a knob or handle 18 by which to move it.and with a spring catch 19. the free end of which enters a notch 20 inthe forward end of bar 1 when said bar 5 is lowered to horizontalposition. The swell or boss 7 of clamping bar 5 is grooved to form acontinuation of the groove 11 of bar 1. The device being constructed inthe manner described, the light-exchiding wrapper or envelop 21 with thecellulose film 22 upon it. is laid upon the table 9, and adjusted sothat the end of the film slightly overlaps the bar 1. The clamping bar 5is then lowered to horizontalposition, and in assuming such positioncauses the swell or boss 7 to bear upon the film and the pa )er, and tobend or deflect both downward lnto the depression 8 and out of planewith the bed or table 9, the bend so made, or the lower portion of it.lying below the plane or level of the channel or groove 11. Vhen the baris thus lowered and locked by its spring catch 19, the knob 15 isgrasped, the slide or plunger 14 is retracted from beneath the stack ofpins in the magazine 12,'permitting the lowermost pin to drop into thegroove 11. and

the plunger is then moved forward. carrying "before it the lowermostpin. and forcing it through the paper and the film at both sides of theswell or boss '7. In other words. the pin passes from the under face ofthe paper and film to the upper side,and back from the upper to theunder side, thus leaving both ends of the pin on the under side of the.

paper or film, as shown in Fig. 6. On the upper side only themid-portion of the pin shows.

By using pins of small diameter and without heads, a very securefastening is obtained without anymaterial or objectionable projection,and the ends of the pin are in a position where they cannot cause,injury or do any harm to the film in its further handling. In types ofdaylight-loading films where the light-excluding wra )per or envelop isfolded back upon itsel as described in my above-mentioned application,the main body or strip of the-paper will be passed beneath the table 9,as indicated in Fig. 2.

As the film may and commonly will be carried on reels or spools. theswiveling or mounting of the device in a manner to permit it to be swungout of line with the film ditiiculty might be experienced in removingthe film and w 'apper from the table 9.

Headless pins are employed in order that there may be no undesirableprojection or protuberance that would tend to distort or injure film orwrapper whenwoumi. if desired, the pins ma be. double pointed, thusmaking it possibleto place the pins in the magazine without regard towhich end is foremost with. reference to direction of movement. 4

Various changes and modifications of the structure falling within theprovince of the mechanic or designer rather than that of the inventor,will readily suggest themselves, and are within the purview of theinvention.

It will be observed upon referring to Fi s. 1, 2 and 3, that the bed ortable 9 forms a. support for the paper independent of or additional tothat afforded by the bar 1. and that the flanges 10 of thetable arespaced equidistant from and on opposite sides of the depression 8, sothat the bend in the paper, wrapper, or sheets to be united will belocated at the mid-width thereof, the central portion of the bed beingcut away to allow said sheets to be forced into the depression of thebar 1, It will also be seen that the groove 11 extends on opposite sidesof the depression 8, thus giving a support for the pin at both sides ofthe depression, yet permitting the same to be lifted directly out of thegroove when the sheets have been fastened together and are to beremoved. By such support of the'sheets and guidance and support of thepins, accurate and secure passage of the pins through the bend or foldin the paper is insured, and all liability of the sheets being shiftedand causing the pin to bear other than a right-angle relation of thelength of the paper, is avoided.

llaving thus described my invention what I claim is:-

1. In aLdevice for uniting sheets or films of material, the combinationof a grooved bar having a seat or depression intersecting the groove; asheet-sup orting bed or table carried by said bar and having an openingto expose the depression in the bar: a. second bar movable toward andfrom the first, provided with a swell or boss to fit the depression inthe grooved bar, and slotted to form a continuation of the groovetherein, a magazine freely communicating with said groove and adapted tocontain a series of pins in immediate contact with one another; and aslide or plunger movable in the groove and serving to force a pin placedtherein, lengthwise of the groove, across the depression,

'and through sheets clamped between said ceive fastening pins, and adepression intersecting said channel; a co-acting bar or lever providedwith a boss or swell to enter said depression, and slotted to form acontinuation of the pin-receiving channel; a magazine freelycommunicating with said channel and adapted to contain a series of pinsin immediate contact with one another; a bed or table overlying thesupportingbar and cut away at its central portion to expose thedepression in said bar; an adjustable flange or gage'plate carried bysaid bed or table and serving to guide the sheets to be united; and aslide or plunger movable inthe channel of the supporting bar to carry apin forward therein, across the depression, and through the sheets lyingupon the bed or table and in said depression.

3. In an apparatus for uniting sheets, th combination of a supporthaving a longitudinal channel to receive fastening pins, and adepression intersecting said channel; a bed or table to receive andguide the sheets to be united; a baror lever co-acting with and movabletoward and from the channeled support and having a slotted swell or bossto enter the depression of the channeled support; a slide or plungermovable through the channel; and a holding device for securing thestructure to a table or support, including an upright stem about whichthe structure may be swung into and out of line with the sheets handledby it. i

4. The herein described apparatus for uniting sheets, comprising a bar 1havin a channel 11 and depression 8; a bed or ta le carried by said barand having an opening through which the depression 8 is exposed; aco-acting bar 5 provided with a slotted swell or boss 7 to-enter thedepression in the supporting bar; a magazine 12 freely communicatingwith the c annel, to receive and hold 1n immediate contact fasteningpins;

and a slide or plunger 14 movable in the channel 11 and past the outletof the maga zine.

5. The herein-described apparatus for uniting sheets, comprising a bar 1having a channel 11 and depression 8; a co-acting bar 5 provided with aslotted swell or boss 7 to enter said depression, and with acatch orfastening 19 for holding it in cooperative relation to the other bar 1;a magazine 12 to receive pins;-a follower 13 for advancing the pins tothe outlet of the magazine; and a slide or plunger 14 movable in thechannel 11 and past the outlet of the magazine.

6. In apparatus for uniting sheets, the combination of abar channeled toreceive and guide fastening pins, and provided with a depressionintersecting said channel; a coactingbar or lever having a swell or bossto enter said depression and slotted to form a continuation of thepin-receiving channel; a slide or plunger movable in said channel andserving to move pins lengthwise of the same and across the depression inthe channeled bar; and a sheet support having guiding flanges adapted toguide sheets of differ in dimensions.

in testimony whereof I have signed my name to this s ecification. I

- XRTHUR W. MoGURDY.

